Injection Molding 

Met-L-Flo Specialty Additive Enabled Solutions

Injection Molding is a very developed process that works for a wide range of programs that are defined by the application.  

For example: 

  • Fixed Design
  • High Volume Production
  • Long Life Tools
  • Lower Per Part Cost
  • Rapid Production (Once the Tool (A.K.A. Mold) is Made)

Many industries utilize our Injection Molding technologies which include but are not limited to:

  • Aerospace
  • Agriculture
  • Automotive
  • Business suppliers
  • Consumer products

Injection molding is the perfect process for high-volume production parts but should be approached at the right time. This process should be utilized when the intended design has been thoroughly tested in the intended application as well as when production needs to scale up. There are a few reasons for this. One, injection molding tools are expensive because they are hard tools and last for the product's lifetime. Two, these tools cannot be modified easily. This means that your design has to be proven, and no more changes before purchasing the tool. If not it is going to be an expensive mistake. These tools take a long time to make so time and money are lost if the tool is not correct. If you aren't ready for Injection molding check out our casting page for a better fit for your needs.

Why should you use Injection Molding?

If Injection Molding is your need currently then let's dive into the process. Injection molding is a great process, depending on the size of the part or the processing of the parts many can be produced in seconds. This makes it one of the fastest production methods.

Creating the tool takes time because it is a metal mold and needs the right form and automation to fit a machine and perform optimally. This is because the mechanics of injection molding are more intricate than lower volume casting methods. The tool is placed into the machine and filled with a thermoplastic. The top of the tool is removed and an ejector plate pushes the part from the rest of the tool. This requires a draft which is the tapering of the tool so that the part does not create a vacuum from the motion of the tool opening. If a tool does not have any draft the part will be more difficult to remove likely damaging the part or rendering it unusable. 

Although many precautions need to be taken before starting an injection molding project it produces large quantities of parts quickly. This in the long run makes the large cost of the tool worth the investment.  

There are so many applications that Injection Molding can be applied to. If you are interested to see how our Injection Molding technology can assist you on your next project give us a call at (630)409-9860 or email us at

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We're more than happy to address any questions or concerns that you may have.

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